If someone wants to sell you a cable, proving that only this simple device is enough for normal functioning, do not believe this person. It deceives you, because just one special cable is not enough for normal operation. VGA and HDMI signals are fundamentally different from each other in their functional purpose. If you want to convert one signal to another, you can't do it without a special device. How are they different from each other? VGA is an analog signal and HDMI is a digital signal. As it becomes clear, you can’t get by with just one cable.
Principle of operation
The output device can send the digital signal to any compatible HD input device using an HDMI cable. The same principle of operation applies to VGA devices. This becomes possible thanks to three devices, such as:
- cable;
- receiver;
- transmitter.
The only condition is that all these components must be compatible with each other. Just don’t confuse the operating principle of these devices with the exchange of data between signals such as HDMI and DVI. They are digital, therefore, their operating principle is approximately the same, the only differences are in appearance.
To exchange a video signal between a VGA and an HDMI device, you cannot do without a special adapter that will allow you to do this quickly and without any problems. HDMI can transmit audio and video simultaneously. So, it becomes clear that it is also necessary to ensure normal audio transmission from the computer. How to do this? Use an HDMI VGA adapter, which will combine the audio signal and VGA into HDMI.
As you can see, to convert VGA to HDMI, you just need to buy an adapter in our online store at an attractive price. Remember that these signals have nothing similar to each other, so you simply cannot do without this device.
In just a few decades, man has managed to create a huge amount of different equipment, which not only has all sorts of functions, but also implements multiple ways of operating formats and encoders. For example, many modern TVs were equipped with USB ports, and literally a few years later they began to install other devices for connecting to a computer or other sources of video or audio signals. Moreover, most of these devices have different connectors, which has increased the demand for such a switching element as an adapter from HDMI to VGA and the like.
Purpose
Typically, such a device is necessary to transmit audio and video signals. With its help, you can connect a computer or laptop to a TV, which allows you to use the former as a kind of player or tuner. In this case, the adapter from VGA to HDMI may not be the only one in the communication chain of both devices.
Connection Features
Quite often you have to deal with a situation where the TV has one input, and the computer has a completely different one. Therefore, various adapters are used to obtain the desired plug. However, you should definitely use an HDMI VGA adapter if you have at least one plug of this type.
And you can already attach the necessary options for connecting elements to it.
How to make the connection correctly?
First you need to decide on the type of port that is on the TV and the second device. Then you need to assemble a circuit that will connect both devices and may contain an HDMI VGA adapter. When the TV is connected to a computer or other transmitting device, the video signal reception mode must be activated on it. To do this, you usually press just one button, which selects the “Video” program. At this point, everything that is displayed on the computer screen will be shown on the TV. If you connect it to a laptop, then you need to enable the second screen mode on it. To do this, press the "Fn" function key, and then the button with the image of two screens.
Acquisition
As standard, such adapters are not sold with TVs or computers. They must be purchased separately, in specialized stores. Moreover, if the HDMI VGA adapter is quite common, then other configurations of switching devices appear quite rarely. That is why it is best to purchase the necessary adapter by ordering it in advance. Moreover, if it is necessary to use several types of connections, you should buy switching devices from one manufacturer in order to avoid unnecessary potential differences that may arise when using conductors with different cross-sections and even materials of manufacture.
By correctly connecting the adapter to both types of devices, you can enjoy clear and high-quality digital images on a large TV screen. This will allow you not only to watch movies in stunning quality, but also to play the latest games on a high-resolution screen.
HDMI-VGA adapters are used to transmit video signals from the monitor. These devices are also called converters. The cable they most often use is the three-core type. The main parameters of converters include bandwidth, synchronization speed, and conductor frequency.
You can buy a good model in a store for 1,200 rubles. The HDMI-VGA adapter circuit includes a video sender as well as an amplifier. The repeater in the devices is of a multi-channel type. In order to find out more information about converters, you need to consider specific models.
Reviews about "Atkom"
This adapter from HDMI to VGA is used for monitors from various manufacturers. You can connect the device to a projector or ultrabook. In this case, the throughput of the conductor is 4.5 Mbit per second. If you believe consumers, then problems with the frequency difference for the specified adapter are not terrible. The output impedance of the converter is 40 Ohms.
The maximum frequency of the device is 120 MHz. It is also important to mention the Side technology. According to experts, it helps with synchronizing devices. The technology is also designed to reduce the maximum sensitivity of the video sender. Thus, file conversion failures are rare. You can buy the specified converter in the store for 1300 rubles.
Opinions about the Defender adapter
This HDMI to VGA adapter has been in great demand lately. Many buyers choose it for its compactness and reliability. In this case, the conductor is installed with an amplifier. The device supports PP20 formats. If necessary, the audio signal can be transmitted at a frequency of 130 MHz. According to experts, synchronization failures are rare.
Another feature of the converter is the high sound frequency, which is at 240 kHz. The model supports “Link” protocols at high throughput. The output impedance of the specified adapter is 45 Ohms. The device is suitable for differential content transmission. The monitor can be connected to different manufacturers. The compression time depends in this case on the workload of the video sender. The presented VGA-HDMI adapter (the price indicated is the market price) costs approximately 1,500 rubles.
Digitus device description
This HDMI to VGA adapter will allow you to transmit audio signals at different frequencies. The maximum throughput of the converter is 3.5 Mbit per second. Compression formats are supported by the device without problems. In this case, the amplifier is of the pulse type. According to experts, the equipment is synchronized at high speed.
If we talk about the parameters, the output impedance of the converter is 45 Ohms. The maximum sound frequency reaches 340 kHz. The "Side" system in the device allows you to solve problems with the transmission of audio signals. The presented adapter is not suitable for switches. The cable in the device is of a two-core type. Its conductivity indicator is 3.3 microns. The HDMI-VGA converter (active adapter) costs about 120 rubles.
Drobak parameters
This HDMI to VGA adapter has a lot of advantages. First of all, it is important to note that the device is capable of working with the K4 format. The model's color system is used in the PAC series. According to experts, video sender malfunctions occur very rarely. The audio signal itself is processed quickly. The output resistance of the conductor is 43 Ohms. The maximum throughput of the converter is 3.5 Mbit per second. You can buy this model in the store for 1,500 rubles.
Unitek reviews
This is an inexpensive converter that supports the most common audio signal formats. The synchronization speed of the model is very high. It is also noted that the output impedance is 40 ohms. The maximum throughput of the converter is 4.5 Mbit per second. The device has a protective braid. The amplifier in this case is used with a conductor.
The video sender is capable of operating in cyclic mode. Thus, file compression failures rarely occur. It is also important to note that the device is compact. The cable is installed by the manufacturer as a two-core type. Its conductivity parameter is 5.5 microns. This VGA-HDMI adapter costs about 1,400 rubles (the price depends on where you buy it).
EasyLink adapter diagram
These converters are manufactured with high-quality video senders. If you believe customers, their frequency does not drop sharply. The maximum throughput is 4.2 Mbit per second. The adapter's amplifier is of the pulse type. The specified converter supports all major color formats.
Problems rarely arise with audio signal transmission. According to experts, synchronizing equipment does not take much time. Another advantage of these adapters is a high-quality protection system. The output impedance of the modification is 40 Ohms. The sound frequency of the model does not exceed 340 kHz. A user can buy a converter for 1,300 rubles.
Description of the ExtraDigital device
This HDMI to VGA adapter cable is sold with support for many audio signal formats. The maximum throughput of the modification is 4.2 Mbit per second. According to experts, compression failures rarely occur. The output impedance of the adapter is 45 Ohms.
In this case, the Side system operates in automatic mode. To increase the synchronization speed, PAP technology is used. The maximum sound frequency is 230 kHz. You can buy the specified converter on the market for 1600 rubles.
Often, users who have old monitors are faced with the lack of digital connection interfaces on new video cards. In this case, there is only one solution - the use of special adapters and converters. The correctness of their operation directly depends on the models of the video card, monitor and the quality of the device itself. If you are faced with the fact that the purchased equipment does not work, do not be upset, because you can try to fix this problem with several simple methods.
HDMI and VGA connectors differ not only in shape, but also in the principle of their operation. VGA is an older connection interface that is only capable of transmitting images to the monitor. HDMI is a more modern solution, actively being developed in our time. This video interface is digital and is capable of reproducing images in the best quality and also transmits audio. An adapter or converter not only allows you to connect to the required connector, but also ensures correct transmission of image and sound. Read more about making such a connection in our article at the link below.
Problem solution: HDMI-VGA adapter does not work
As mentioned above, the connected adapter does not always display the image on the screen and work completely correctly. In some cases, the monitor, video card, or model of equipment used is simply incompatible with each other or requires additional settings. The problem with a non-working adapter is solved in several simple ways. Let's look at them.
Method 1: Changing Screen Resolution in Windows
To implement this method, you will need to connect the system unit to a monitor with a digital interface, TV or laptop. The thing is that many older monitors do not support higher resolutions, so you need to manually change it in the operating system. Read more about connecting a computer to a TV, monitor or laptop in our articles at the links below.
You can change the screen resolution in Windows using the built-in settings. You just need to follow the following instructions:
You can find out the maximum supported monitor resolution in the instructions or on the manufacturer’s website. Read more about changing screen resolution in Windows in our articles at the links below.
Method 2: Replacing the adapter with an active converter
Usually, when connecting a computer with a new video card to an old monitor or TV, the power transmitted through the cable is not enough. Because of this, simple adapters will not display an image. In addition, they do not allow sound transmission due to the lack of an appropriate connection cable.
We recommend purchasing an active converter from the store and connecting again through it. The peculiarity of such equipment is that its system receives additional power via a USB connector, while ensuring fast and correct operation. If you also need to transmit audio, choose a converter with an additional connection via Mini-Jack.
The above methods are the most effective and most often allow you to quickly solve the problem. However, if none of the methods help you, try connecting the adapter to another device, check the cables and motherboard for integrity, or contact the store to replace the equipment.
A relative treated herself to a widescreen Philips smart TV for the New Year. I chose the TV. Among the many wishes when choosing a model was the ability to connect it to a netbook as a monitor. And here I, accustomed to the fact that there is an HDMI port on all modern laptop computers, gave up. The netbook only had an analog VGA output. The TV had neither VGA nor DVI ports. What can you do to correct your mistake I had to start looking for an adapter from VGA to HDMI. The adapters that were offered offline were quite expensive. In addition, the sellers did not guarantee their 100% performance in a particular case. Therefore, I had to look for an adapter on the Internet.
In this situation, of course, there would be no question of any preliminary testing, and if the device was not working, I would have been faced with tedious correspondence with the seller and the subsequent sending of the goods to my homeland. Therefore, when the opportunity arose to buy a VGA to HDMI adapter from the online store chinabuye.com for free for review, I was quick to take advantage of it.
The adapter came in a cardboard box with a window. 
On the back was a brief summary of the device's capabilities. 
The delivery set included:
Adapter,
- USB cord for additional power 80 cm long,
- instructions in English. 
Adapter size – 6.5x5.4x2 cm. 
Input – VGA female and audio 3.5” 
Output – HDMI female. 
MiniUSB connector for connecting additional power. 
I couldn’t open the adapter, so, unfortunately, I can’t show you how it’s assembled.
Adapter characteristics:
Support HDMI 1.3, HDCP 1.2
- VGA input resolutions: 640x, 800x, 1024x, 1280x, 1280x, 1280x, 1280x, 1280x, 1360x, 1440x, 1600x, 1920x
- HDMI output: 480p,720p,1080p.
Instructions
Testing:
To check the operation of the adapter, I had to additionally purchase VGA and HDMI cables, which were not included in the kit. The assembled connection looks like this: 
A USB cable for additional power was connected to the netbook. The adapter does not work without additional power.
As promised in the instructions, the adapter worked without any additional movements. It was enough to simply connect all the cables. You can see the result in the photo below: 
In the example, the image is displayed on the TV in 720p resolution using the screen cloning method. It was not possible to test a higher resolution, since this is the maximum that a netbook’s video card can output to its display.
I didn’t test the audio because it wasn’t necessary for the task.
conclusions
The adapter fully corresponds to its purpose. Quality loss, artifacts, etc. things were not noticed during use. I have eliminated my mistake in front of my relative and can confidently recommend this adapter for connecting netbooks and other devices with a VGA output to a TV via HDMI.
